Human health is made up of several small parts, and the health of the mouth and teeth plays a major role. The function of teeth is not only to chew and pronounce words, but in modern society, teeth more often take on the role of facade as well! People with good teeth are often more popular! If you have bad teeth, you will have low self-esteem! Want to protect the teeth in addition to pay attention to diet and hygiene, we have to eliminate some of the vices that harm the teeth. The first major habit of destruction of teeth: brushing too hard brushing too fierce will cause the surface of the teeth enamel and dentin excessive abrasion, resulting in tooth allergies, pulp exposure, and even tooth root exposure. The second major habit of destroying teeth: often bite too hard food There are some longitudinal teeth development grooves, fusion grooves, after chewing hard objects, and then these weak parts are easy to crack. The third major habit of destroying teeth: the teeth as a universal tool often use the teeth to open the bottle cap, bite bags, etc., easy to lead to tooth fracture, displacement. The fourth major habit of destruction of teeth: often chewing with one side often chewing on the side of the muscle joints and jawbone development imbalance, the light affects the aesthetic appearance, the heavy can cause excessive wear and tear of one side of the teeth and jaw joints dysfunction. The fifth major habit of destroying teeth: often bite the teeth of the cackling often so that the teeth will be excessive wear and tear, prone to tooth fracture and other symptoms. The sixth major habit of destroying teeth: randomly taking medication Pregnant women after 4 months of pregnancy or children before the age of 7 years to take tetracycline drugs, the drug will be combined with dentin, so that the color of the teeth black, and seriously impede the development of the dental tissues, resulting in the surface of the teeth is missing. The seventh major habit of destruction of teeth: often use toothpicks picking toothpicks will make the soft gums continue to retreat, long-term, the root of the teeth will be gradually exposed, resulting in tooth sensitivity, but also increase the chances of suffering from caries and periodontitis.